more multiple file problems

I swear I've tried everything at this point, but no matter what I do, the only way to avoid errors is to throw everything into one file, which ends up a tangled nightmare of code.

There's 3 distinct sets of functions: entry point & proc loop, rendering functions, and the main (editable) functions. The main functions and the entry point use the rendering functions constantly. All three sets of functions need to use the same set of global variables and constants.

Is there any way I can possibly accomplish this in an organized fashion without having to pass everything?

It's probably better to pass everything anyway. A function's use of a global variable violates the stand alone, reusability of a function.

Thanks, you gave me an idea.

Tell me if this will cause any long range problems: I could put the globals in a struct, declare and fill the struct in the entry point function, and just pass the struct around.

Sounds fine. It's much cleaner than using globals.